kirks



A. KIRKSL SAFE LOCK.

' (No Model.)

6 Sheets-Sheet I.

No. 454,971. Patented June 30, 1891.

. v lVl/E/VTOR ATTORNEY WITNESSES:

1112 Ronald 7:301: 60., moi-04mg, magma-ram c (Nd Model.) 6 Sheets-Sheet 2.

' A. KIRKS SAPE'LOGK'.

No. 454,971. Patented June so, 1891.

WITNESSES:

ATTORNEY (No Model.) v s Sheets- -Sheet a.

'A. KIRKS.

SAFE LOOK.

' NO. 454,971. Patented June 30, 1891.

@Z9 %Z7 6 v IN VEN 1-0/1 WI THE-SSE s.-

6 Sheets-Sheet 4.

(No Model.)

A. KIRKS.

SAFE LOCK. No. 454,971. Patented June 30, 1891.

' INVENTOR.

ATTORNEY (No Model.)

- sweets-411m 5, A. KIRKS.

SAFE LOGK.

Patented Jiine 30, 1891.

INVE/VTDI? I ATTORNEY 6 Sheets-Sheet 6.

(No Model.)

' A. KIRKS.

. SAFE LOOK. N0. 45'4,971. Patented June 30, 1891.

o; 5 i/A/l/E/VTOR BY I W Arm/my UNITED STATES PATENT OFFICE.

ALBERT KIRKS, OF CANTON, OHIO, ASSIGNOR TO DIEBOLD SAFE AND LOCK COMPANY, OF SAME PLACE.

SAIFVE-LOC K.

SPECIFICATION forming part of Letters Patent No. 454,971, dated June 30, 1891.

Application filed February 20, 1890. serial No. 341,237. (No model.)

To all whom it may concern.-

Be it known that I, ALBERT KIRKS, acitizen of the United States, and a resident of Canton, county of Stark, State of Ohio, have invented 5 a new and useful Improvement in Safe-Locks, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawings, making part of this specification.

My invention relates to improvements in safe-locks, and more particularly to that class of locks in which the locking-bolts are cast and retracted for locking and unlocking the safe-door by springs located inside of the safe.

My invention consists in certain features of construction and combination of parts, which will be hereinafter described, and pointed out in the claims.

WVith these ends in view my invention re- 20 lates to and consists in certain features of construction and combination of parts, as will be hereinafter described, and pointed out in the claims.

Figure 1 of the accompanying drawings is an elevation showing the inside of a safe-door illustrating one application of my invention; Fig. 2, a perspective of lock-case, showing the construction of the interior of the same and the position of the eccentric provided for compressing the bolt-actuating springs; Fig. 3, a

similar view of the sliding plate, showing the rear face; and Figs. 4 and 5, a portion of the detail; Fig. 6, a perspective of the lock-case,

showing the sliding plate in position, with twoof the four castings and one of the four retracting-springs in position, and an angleplate by which the head of the sliding plate is secured to the door-bolts; Fig. 7, a perspective of the slidin g plate, showing the rear face of the plate and anti-friction roller; Fig. 8, a side elevation showing the lower side of the case and detent-levers; Fig. 9, a plan view of a cap or cover for the detent-levers. Fig. 93} is a plan view of the rear cap or cover for the lock, showing inside face of the same. Fig. is an elevation of the lock, showing the front face of the lock-case with detentlevers in position. Figs. 11, 12, 13, and 13% are perspectives of the detent-levers, and Fig. 50 14 a cap or keeper for same; Fig. 15, an elevation of the lower side portion of the lock,

a portion of the case removed to show the casting and retracting springs. Fig. 16 is an elevation of the front face of the lock with cap partly removed to show interior detail. Fig. 17 is a perspective of the mechanism for compressing the springs; Fig. 18, a similar view of the key to wind the compressing mechanism.

In this case the detent-levers, excepting at the instant of releasing by the time mechanism, are always in looking position.

Having thus fully stated the object of my invention, I will now proceed with a brief description thereof without further referring to or calling attention tothe state of the art.

A represents the lock-case proper, in which is provided a chamber a. for the retractingsprings a and a bearing a for the springcompressor. The compressor is composed of the shaft B, the circular portion 0, placed eccentric to said shaft, a disk portion, as D, adapted toreceive awinding-key E, (see Figs. 17 and 18,) and a detent-stud a The retracting-springs a are placed in the chamber a, one end of each resting against the inside end portion a of the case A, the other end against a transverse abutment a of the sliding plate F. The end portions A of the case A are cut away, as shown in Fig. 2, to form a channel for the sliding plate F, which is placed therein and extends therethrough, as shown in Fig. 6. The sliding plate F is formed substantially as shown in Figs. 3 and 7, havinga neck portion, as a and a head portion, as a, a body portion a having therein an elongated perforation a longitudinal with the body portion of the bolt, and-transverse abut-- ment portions a". On the face of the abutment is provided outwardly-projected lugs 19, in which is secured a friction-roller b, hereinafter explained, and on the front face of said abutment a are provided forwardly-projected portions b by which the end portions of the casting and retracting springs are spaced apart. The sliding plate, as above described, and illustrated in Figs. 3 and 7, is now placed in the channel portion of the case A and extending therethrough, as shown in Fi '6;

fietwvee'n the walls of the lock-case A and on each side of the neck portion a is. placed a sliding plate G, made in pairs, as shown in Figs. t and 5-2. 6., each figure shows the halfseetion of said plate. These plates rest against the plate H, as shown in Fig. 15. The

casting-springs b are now placed in position, one end resting on the semicircular projection b and against the abutment a, the other end resting on the sliding plate G, as shown in Figs. (5 and 15. For the purpose of this case I have made provision for four castingsprings, by which the door-bolts are thrown into a locking relation to the door-jamb, and a similar number of retracting-springs, the expansion energy of the latter to be about one-third greater than that of the former, the former to cast the door-bolts, the latter to retractthem. A rear lock-case cap J is provided, having a bearing-aperture b for the end 11 of the shaft B, and perforations?!) to correspond with similar perforations in the lock-case A, and perforations b for dowelpins 12 and horizontal downwardly projected ribs Z9 that rest between the castingsprings. Fig. 9% shows the inside face of the plate, which is secured to the lock-case by screws in perforations (Z and the lock to the safe-door by screw-bolts d in the perforations If, as shown in Fig. 1.

Having completed my description of the' lock-case and the devices contained therein for compressing, the door -bolt actuating springs, I will now proceed to describe the devices employed to detain the retractingsprings to.

On the front face of the lock-case A is provided studs 72, and h, and pivoted in said casing is the spring-compressor shaft B, carrying the disk D.

A detent-lever L, as shown in Fig. 12, is provided, having at one of its ends a head portion 71 having an annular perforation h, shoulder h and a pawl portion 7L6, and at the other end a stud-pin h This lever is placed on the stud h, the stud passing through the perforation 72; into a similar perforation 7&8 in the securing-plate M, said plate resting on and secured to the case A over and above the head portion of the lever, leaving the said lever free to move about the stud h.

A compound lever N, Fig. 13, has at one of its ends an annular perforation adapted to rest on and rotate about the stud h on the case and an elongated aperture 71 and at the other end a stud-pin k. The free end 7t" of said lever is formed on a line slightly oblique to the body of the lever, adapting it to rest on the shoulder 725" on lever L to lock it against further downward movement. The said 1ever is placed on the stud h, the said stud entering and passing through the perforation h", the stud-pin h on the end of lever L restingin the elongated aperture 7L A third lever O, of the form substantially as shown in Fig. 11, is provided, said lever having an outwardly-projected arm k having an annular perforation k, and in the body portion of the lever an elongated aperture said aperture lying in a direction oblique to a line drawn longitudinally through the body of the lever, and at the free end portion of said lever is provided pin 70, projected from the side of the lever, which will be hereinafter explained. The said lever is placed on the stud 72, above the lever L and under the securing-plate M, the stud passing through the levers L and O and into the plate M, the said levers L, N, and O overlapping each other, as shown in Figs. 8 and 15.

A locking detent-lever P, of the form shown in Fig. 13:}, having a body portion k, one end of which is provided with a short sleeve portion k by which the said lever is pivotally secured to the caseA about the stud 708 at the other end portion of said body portion, is provided with a latch or detent-hook k to engage the pin k hereinbefore mentioned, the free end 70 of said lever to engage a time mechanism, as shown in Fig. 1 of the drawings.

About the sleeve portion 70 of the lever P is placed a spring m, the free end thereof resting on a pin m. The energy of said spring is exerted to hold the catch k" in engagement with the pin k at the free end of the lever O. I would call attention to the position of the apertures h and k in this: that they are oblique to a line drawn from the supportingstuds h and h, by which engagement of the pins 7L7 and 7.; and the aforesaid apertures graded as they are shown, the levers may be held in locked engagement by a very slight power applied to the free end 70 of the lever P, and by reason of the grades shown in the apertures 7t and 7a a slight pressure of the detent a of the winding-disk C on the lever L, when the lever O is released from the detent k by the action of the time mechanism, will throw the levers into position shown by the dotted lines and release the retractingsprings, when said levers instantly fall back by their own weight into their normal position, as shown in Fig. 10. The locking-face of the detent a and the end of the pawl h are beveled, so that the pressure of the detent will press outwardly on the end portion of the pawl 71. to throw the levers out of engagement with the winding-disk G and into position shown by the dotted lines, as before stated.

R represents a cap or cover for the detentlevers, (shown in full in Figs. 1 and 9, a portion of which is cut away in Fig. 10 to disclose the detent-levers,) through which the end portion In of the lockingdetent-leverP is passed, as shown in Fig. 1, to engage the arm m of the time releasing mechanism. The under side or face of said plate is shown in full in Fig. 9, showing the aperture P, through which the winding-disk is exposed, said plate having about said aperture notches P and P to admit the key E to engage the disk and to provide for disengagement.

The next feature to which I will call attention is the devices provided to retract the door-bolts. As heretofore constructed the IIO power required to retract the door-bolt has been limited tothe strength of the neck portion a of the sliding plate F, and not infrequently does it happen that the neck portion is broken from the body of the plate or the head a from the neck a, by the violent movement of retracting-spring when exerted to retract the door-bolts, in which case the bolts remain engaged with the door-jambs and the safe in locked position. To avoid such acct dent, I have projected the body portion of the sliding plate F through the end portion of the case A, as shown in Fig. 1, to which I now call especial attention. The head portion a of the plate F is secured to the plate H, as shown in several of the'figures of the drawings, and the said plate secured to the plate S, to which the door-bolts T are secured. A plate U, secured to the bolt T, is extended across the safe-door, as shown in Fig. 1. The

- free end of said plate or bar is pivotally secured to the upper end of a swaybar V, as shown at m and said bar is pivotally se cured at its middle portion to the inner face of the door, as shown at m, the other end of said sway-bar V having a pivotal connection with the vertical plate W, as shown at m, to which plate the doorbolts X are secured. A sway bar or bolt actuating lever Y is provided, which is pivotally secured to the safe-door, as shown at ml The other end of said sway bar or lever is pivotally secured to the plate W at m (the plate cut away to show detail,) the free end an" of the lever Y engaging the end portion of the sliding plate F. To cushion or in measure arrest the violent movement of the door-bolts, weighted Wheels Z are provided, as shown, which are supported on and rotate about spindles n. The inner half portion n of said Wheel is reenforced or made heavy by the addition of metal, and is provided with a stud-pin n to engage the edge of the plate S. When the bolts are cast, the pins n will follow the plate S to a point shown by the dotted lines, the weighted portion being at the bottom, and when the bolts are suddenly retracted the plate S, engaging the pin 02 will cast the wheel and pin up and over the center of the spindle n, and the wheel will then fall with its own weight plus its momentum to meet the retracting-plate before it has completed its movement to retard or check said movement to the extent of raising the weight of the wheel to its normal position. 7

To give notice of the casting of the bolts I have provided an alarm 19. In this case I have used a small gong, which may be sounded by a pin 1) coming in contact with the sounder p when the bolts are cast. The object of this arrangement of devices is to assure the person attending the safe that the bolts have been cast and the safe-door locked.

In operation Fig. 1 illustrates the doorbolts retracted and the safe-door unlocked, the detent Q having dropped into position, as

shown, the head portion a in front of the time, the door is passed into the jainbs.

plate S in the line of its movement, and the ,tail portion a projected outwardly to meet the process of winding until the detent-stud a engages the end h of the lever L, when the winding-key may be withdrawn from the disk D, the end of the bit 19 passing through notch P As the key is turned, it carries with it the disk D, shaft B,and eccentric-wheel (J in the direction indicated by the arrow,-Fig. 10, the periphery of said wheel engaging the roller 1) on the abutment of the sliding plate F. The said eccentric is turned about five-eighths" of one revolution, or until the extreme point of the eccentric has passed a line drawn cen; trallythrough, the shaft B, disk D, and sliding plate F, as shown in. Fig. 16, at which point the course of the key E will be arrested by the stop 19 (see Fig. 16,) at which point it can be withdrawn, the outer end portion of bit 19? passing out through the notch P the winding or rotating of the eccentric 'against the roller 1), before mentioned, the

sliding plate F will be moved inand through the case A, the springs, both casting and retracting, compressed, the detent-stud a resting on the pawl h of the detent-lever L, the

detent-levers locked in position to stop further rotation of disk D and eccentric C by detent-lever P. To release the levers O, N, and L, which will be thrown by the energy of re tracting-springs through the eccentric and detent a into position shown by the dotted line, Fig. 10, the detent a having passed the pawl h", the detent-levers fall instantly back into their normal position to arrest the forward movement of the winding-disk and eccentric when the springs are compressed. By the retracting of .the sliding plate F the cocentric will be thrown over to the position shown in Fig. 2, or place of beginning, The detents all in position, as before stated, the casting and retracting springs compressed, the time mechanism wound and set to act upon the mechanism of the look at a desired The tail n of detent Q engaging the said jamb will swing the head 01 out of engagement with the bar S, at which instant the casting-springs will cast or shoot the sliding plate forward, asshown in Fig. 8, to cast the door-bolts into locking engagement with the door-jambs to 1ock the door thereto and to sound the gong, the door'to remain so locked until ,a time previously determined, when the time mechanism will release the detent-levers that are holding the retracting-springs under restraint, and the door-bolts retracted by the energy ofthe retracting-sprin gs exerted on the sliding plate F to move said bolts through the lock-case A, both ends of said plate having a retracting engagement with the door-bolts to draw said bolts from engagement with the door-jamb.

Having thus fully described the nature and object of my invention,WhatI claim as new, and desire to secure by Letters Patent, is

1. The combination, With the bolts of the safe-door, of springs for casting and springs for retracting the bolts, a sliding plate against which both sets of springs act, each end of said plate adapted to actuate the bolt-operating mechanism to retract the bolts, a detent to hold the retracting-springs under tension, and a time mechanism to release said springs, substantially as described, and for the purpose set forth.

2. The combination, with the bolts of a safe and bolt-operating mechanism, of an actuating device for the bolts, comprising a casing or shell, a movable plate, as F, to slide through said shell and with each end engage the boltoperating mechanism, springs located be tween said movable plate and opposing part of the case, and the second set of springs be tween the said movable plate and a part attached to the bolts, and a spring-compressing device adapted to compress the spring, having an eccentric portion constructed to work with its periphery against theplate F interjacent its ends, and a hand-lever to operate the eccentric, and a plate adapted to receive the Winding-key and prevent its Withdrawal until after the springs have been compressed, substantially as described, and for the purpose set forth.

3. The combination, With the bolts of a safe, of an actuating device for said bolts, comprising actuating-springs, and a sounder to indicate the casting of the bolts when the door is closed, substantially as described, and for the purpose set forth.

4:. The combination,with the bolts of a safe, of an actuating device for said bolts, C0111- prising actuating-springs, a plate connecting said bolts, and rotary weights provided with stops for engaging said plate to check the sudden stop of the safe'bolts, substantially as described, and for the purpose set forth.

5. The combination, with the bolts of asafedoor, of an inclosing case A, a sliding plate F, mounted in the end portions of said case to move therethrough, said plate having intermediate its ends an abutment a, retracting-springs a, interposed between said abutment and the stationary or fixed end portion of the inclosing case, casting-springs b interposed between said abutment and a sliding plate G, having engagement with the door-bolt mechanism, an elongated aperture intermediate the ends of the said plate F, a Winding-shaft B, passed therethrough, having its end portions journaled in said case, and an eccentric portion 0, secured to said shaft and adapted to engage the sliding plate intermediate its ends to compress the casting and retracting springs, detents to hold the said springs compressed, and means for actuating the said detents for releasing the casting and retracting springsysubstantially as described.

6. The combination, with the bolts of a safedoor, of a lock-inclosin-g case A, a sliding plate F, mounted in said case to move therethrough, said plate having intermediate its ends a transverse abutment portion a, retracting- 'springs interposed between said abutment and the end portions of said ease, castingsprings Z), interposed between said abutment and a sliding plate Gr of said case, said sliding plate F having an engagement at both of its ends with the door-bolt mechanism, and means for compressing the casting and retracting springs, detents to hold the retracting-springs compressed, and means for actuating said detents to release the retractingsprings, substantially as described.

7. The combination, with the bolts of a safedoor, of a case A, sliding plate F, mounted in said case to slide therein and actuate the doorbolts, retracting springs a to engage said plate interjacent its ends and the stationary end of the lock-case, castin springs I) to actuate said sliding plate, said plate having in its body portion an elongated through-perforation a a spring-compressing mechanism comprising a shaft 13, passed through said perforation and journaled in said case, having mounted thereon an eccentric portion 0 to engage the sliding plate F interjacent its ends, a disk or head D, adapted to engage a Winding key to turn the eccentric to and against the sliding plate to compress the springs; and a detent to hold said shaft and eccentric against rotation until released by the time mechanism, substantially as described.

8. The combination, with the bolts of a safedoor, of a case A, a sliding plate F, mounted therein to slide therethrongh and to engage the bolt mechanism with each of its ends, springs to east and to retract said bolts, an eccentric to slide said plate and compress said springs, a detent-stud a on the disk D, detent levers L, and levers N, O, and P to lock said eccentric against rotation until released by the time mechanism, substantially as set forth.

9. The combination, with the bolts of a safedoor, of a case A, having therein a sliding plate F, casting and retracting springs, a rotary Winding mechanism to slide said plate to compress said springs, a detent-stud a, on disk D to engage a detent-lever L, pivotally secured to said case, said lever having at its free end a stud-pin 71/7 to enter and engage the sides of an elongated perforation h in a second lever N, said lever pivotally secured to said case and having at its free end astudpin to engage the sides of an elongated aperture 7.2" in a third lever 0, said lever having a pivotal connection with. said case, and a (letent-lever P, and a timemechanism to trip said lever to release the retracting-springs, substantially as described.

10. The combination, with the bolts of a safe-door, of an inclosing case A, the end portions A of said case'cut away to form a through-channel, a sliding plate F, placed therein to slide therethrough, said plate havin g a transverse abutment a and anti-friction roller 1), a windingshaft B, an eccentricwheel portion secured thereto to engage the roller 1) to slide the plate F to compress the casting and retracting springs,a winding-head on said shaft adapted to engage a winding.- key, a detent a and detent-levers to hold said eccentric in engagement'with the sliding plate to resist the energy of the said springs until released by the time mechanism, substantially as set forth. 7

11. -The combination, with the bolts of a safe-door, of a caseA, sliding plateF, of springs to cast and retract said door-bolts, of means to slide said plate F to compress said springs, of a detent-stud a on disk D, a detent-lever L to engage said detent, a second lever M, overlapping and engaging the lever L, a third lever O, overlapping the levers L and N, and the detent-lever P, said levers N and O having elongated apertures 71 and k oblique'to a line drawn through the center of the studs 0 h and h, substantially as described, and for the purpose set forth.

12. The combination, with the bolts of a safe-door, of a case A, a sliding plate F, said bolt having a retracting engagement at both of its ends, with the door-bolt mechanism, of casting and retracting springs to throw sa d bolts, a revolving eccentric to engage said plate between the ends to slide the plate and thereby compress the springs, a Winding-disk 40 I ALBERT KIRKS.

Witnesses:

CHAS. R. MILLER, W. K. MILLER. 

